Patent US3232069A successfully refreshed from Google Patents.
US3232069A
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Cooling control in fractional crystal-lization responsive to solids measurement
Assignee: Phillips Petroleum Co
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Filing: 1962-02-01
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Granted: 1966-02-01
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Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harold M Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:14
CPC Classifications
G; G05; G05D; G05D11/00; A; A23; A23F; A23F3/00; A23F3/16; A23F3/22; A23F3/24; A23F5/00; A23F5/24; A23F5/28; A23F5/30; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; B; B01; B01D; B01D9/00; B01D9/0004; B01D9/0013; B01D9/004; B01D9/0063; C; C12; C12H; C12H6/00; C12H6/04; G01; G01N; G01N25/00; G01N25/14; G01N25/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078026A
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US2478863A
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US2683178A
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US2894997A
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US3093649A
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US2997856A
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US3077746A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |